Errata
1. Northstar GPS/Loran: As of this date the Northstar
GPS or Loran will only draw a courseline on the
SN3308 when a flight plan is activated. A courseline
will not be drawn when using a direct-to.
Also, please note that there may be as much as a 30
second delay in auto-slewing on the SN3308 when
sequencing waypoints in a Northstar flight plan.
2. BFG WX-500 Stormscope®: The following
information is in addition to that presented in Chapter 3
of the Pilot’s Guide:
a) The indicated strike rate applies only to the visible
area of the display. Zooming in the map range may
cause the indicated strike rate to decrease, since
active weather areas may no longer be visible.
b) No lightning strikes will be displayed when the
current map range is less than 20 nm.
The above items are standard operating features of the
WX-500.
c) Error messages from the WX-500 are indicated on
the SN3308 are indicated by a message ‘Exx’ where
‘xx’ is a two digit code. Refer to your WX-500
User’s Guide for interpretation.
82001-PG-ERR-2.11.doc
7/3/2008
Page 2 of 5
d) A fatal fault on the WX-500 is indicated by a
message ‘FLT’. Please see your authorized
Stormscope dealer for service.
3. Back Course Approach Operation:
When flying a back course approach, the course pointer
should be set to the published front course. In software
versions 2.10 and later, the bottom CDI will
automatically reverse sense when the course pointer is
more than +/-90 Deg from the lubber line. The label
‘BC’ will appear above the bottom CDI during a back
course approach as a reminder to the pilot as shown in
the diagram below.
4. Appendix 2: Selected Course and Current Waypoint,
Bearing & Distance callouts are reversed on page A2-4.
82001-PG-ERR-2.11.doc
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Page 3 of 5
5. Page 7-1: For condition of Loss of Gyro and fluxgate,
Display Column should read “Compass rose color
changes from white to amber.” Applies to version 2.11
software and later.
Revisions from prior revision B2
This information is for informational purposes only. The
following items were revised from the previous version of
the SN3308 Pilot’s Guide, SPN 82001PG-B2 / 90106PGB2:
All Chapters:
• Removed references to radar altimeter.
• Color illustrations moved from Appendix 3 to
Appendix 2.
• ARC description changed from 90 to 70-degrees.
Chapter 1:
• Information added about updating the internal database.
Chapter 2:
• Expanded color list to include new map features.
Chapter 3:
• Added section on power-up messages.
• Revised sections on Map operation.
• Clarification of Deviation Bar operation.
• Added Displaying the Course Pointer.
• Clarification of Auto-Slew operation.
• Clarification of Heading Bug operation.
82001-PG-ERR-2.11.doc
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Page 4 of 5
Chapter 4:
• Revised map operation.
Chapter 5:
• Description of enhanced revised map operation.
Chapter 6:
• Minor clarifications.
Chapter 7:
• Revised list of abnormal conditions.
• List of on-screen messages moved from Appendix 2 to
this chapter.
Chapter 8:
• Corrected power input current specifications at 13.75
and 27.5VDC.
Appendix 2:
• New color illustrations of SN3308 display previously in
Appendix 2.
Appendix 3:
• Deleted.
82001-PG-ERR-2.11.doc
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Page 5 of 5
SN3308
Navigational Display
Pilot’s Guide
Document No. 90106-PG Revision C
82001-PG Revision C
Publication Date: October 27, 1999
Copyright
Copyright 1999 Sandel Avionics LLC.
All rights reserved. No part of this manual may be
reproduced, stored or distributed without written
permission of Sandel Avionics, LLC. Additional
copies of this manual are available from
Sandel Avionics, LLC
2401 Dogwood Way
Vista, CA 92083
Tel: (760) 727-4900
Fax: (760) 727-4899
Information in this manual is current as of
publication or revision date. Specifications and
operational details are subject to change without
notice, at the discretion of Sandel Avionics.
The current Pilot’s Guide can also be downloaded
from the Sandel Avionics website at
www.sandel.com
Revision Notice
The revision and publication date of this Pilot’s
Guide is shown on the title page. The effectivity
of this Pilot’s Guide to specific software is listed
on the cover page of this Pilot’s Guide marked
“Effectivity and Errata”.
The “Effectivity and Errata” page:
a) specifically lists the software to which this
Pilot’s Guide applies
b) corrects any errors or omissions in this
revision of the Pilot’s Guide
c) will be reprinted at the time of any new
software revisions to approve use of this
manual with the revised software.
Additional copies of the Pilot’s Guide and the
latest revision of the “Effectivity and Errata” page
can be obtained at the www.sandel.com website.
Approvals
The SN3308 is approved by the FAA as a multifunction display device under
Technical Standard Order (TSO) C-113.
Installation of the SN3308 in a type-certificated
aircraft must be performed in accordance with
the Sandel Avionics SN3308 Installation Manual
and is subject to field approval by the FAA.
TABLE OF CONTENTS
CHAPTER1
CHAPTER 2
CHAPTER 3
Welcome to the SN3308
What is it?
1-1
Operational and Legal Issues
1-2
Conventions Used in This Manual
1-3
Display Overview
Information Sources
2-1
Display Areas
2-1
Indicators
2-2
Data Color Coding
2-3
Operational Basics
Power-up Displays
3-1
Selecting the Data
3-3
Selecting the Primary Nav Source
3-4
Selecting the Bearing Pointer 1 & 2 Nav Source
3-5
Displaying the Map Data
3-5
Displaying Stormscope® Data
3-7
TABLE OF CONTENTS
CHAPTER 3
CHAPTER 4
Operational Basics – Continued
Controlling the Display
3-8
ARC View and 360˚ View
3-8
Displaying the Deviation Bar
3-9
Displaying the Course Pointer
3-9
Auto-Slewing the Course Pointer
3-10
Centering the Heading Bug or Needle
3-10
Setting the Map Range
3-10
A-B Function
3-11
Button Operation
NAV
4-1
MAP
4-3
BRG
4-5
SHFT
4-7
SYNC
4-9
A-B
4-11
TABLE OF CONTENTS
CHAPTER 5
DOWN-ARROW
4-13
UP-ARROW
4-15
VUE
4-17
Button Summary
4-19
Sub-Menu Summary
4-20
Enhanced Moving Map Features
Overview
5-1
Internal Database
5-2
Map Controls and Displays
5-2
Map Memories
5-4
Getting Started – Example
5-6
Map Setup
5-7
Escaping Map Setup
5-9
Setting Other Items
5-9
Copying Settings into Preset Memories 1-4
5-9
Eliminating a Map Memory from the Rotation Sequence 5-10
TABLE OF CONTENTS
CHAPTER 5
CHAPTER 6
CHAPTER 7
Enhanced Moving Map Features – Continued
Adding a Map Memory to the Rotation Sequence
5-10
Restoring the Factory Default Map Presets
5-10
Automatic Decluttering
5-11
Maximum Range of Internal Map Data
5-11
Quick Map Off
5-12
Map Auto-Range
5-12
Getting the Most From Your SN3308
Using the HSI
6-1
Bearing Pointers
6-2
Example: Flying an ILS
6-3
Flags, Abnormal Conditions & Messages
Flags & Abnormal Conditions
7-1
Messages
7-3
CHAPTER 8
Technical Specifications & Operating Limits
CHAPTER 9
Installation Information
TABLE OF CONTENTS
APPENDIX 1
Technology of the SN3308
APPENDIX 2
Illustrations
WARRANTY
360 View
A2-1
ARC View
A2-2
360 View with Map
A2-3
ARC View with Map
A2-4
Flags
A2-5
Limited Parts & Labor Warranty
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Welcome to the SN3308
CHAPTER
1
Welcome to the SN3308
What is it?
For years, pilots of large commercial aircraft have appreciated the
benefits of Electronic Flight Instrumentation Systems, commonly
known as EFIS. Full EFIS systems combine data from different
sources within the aircraft and provide the pilot with a unified display.
This greatly simplifies the instrument scan and improves positional
awareness.
Unfortunately, EFIS is rarely found in smaller General Aviation (GA)
cockpits. The cost, complexity, and sheer physical size of most EFIS
systems usually relegate them to jets, turboprops, and large pistonengine twins. EFIS screens of 5" x 7" are not uncommon, and the
system cost can equal or exceed the entire value of a recent-vintage
Bonanza, for example.
The Sandel Avionics SN3308 packs the essential features of an EFIS
nav display into a standard three-inch instrument, at a fraction of the
cost of a full EFIS. By combining the functions of an HSI, an RMI, a
moving map and a Stormscope® display into one instrument, the
SN3308 ties together the critical elements of situational awareness.
And by adding to that a 3-light marker beacon and GPS annunciator
displays, the SN3308 becomes the virtual equivalent of an EFIS nav
display, sized and priced for GA cockpits.
Sandel’s unique electro-optical technology eliminates the unusable area
surrounding the display in most CRT and LCD displays. With a usable
image spanning the entire instrument, the 3-inch SN3308 actually
provides more viewing area than most 4-inch CRT displays.
Internally, the SN3308 uses high-speed digital converters to allow it
to receive signals from virtually every type of navigation receiver ever
installed in a GA aircraft. A comprehensive set of maintenance pages
allows the installer to simply specify the make and model of the
installed equipment, and the SN3308 will configure itself accordingly.
The SN3308 shatters the price and size barriers of traditional EFIS
systems. With a full-color display and simple, intuitive user interface,
the SN3308 brings high-end EFIS functions to the GA cockpit.
1-1
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Welcome to the SN3308
Operational and Legal Issues
Because aircraft vary in their installed equipment, it is important to
note that what is displayed on the SN3308 will vary depending on
the presence or absence of equipment such as GPS, Stormscope®,
DME, etc. At a minimum, the aircraft equipment should include a
heading system (remote directional gyro and fluxgate compass), a
VHF (VOR/LOC) nav receiver and a long-range navigation receiver
such as GPS or loran.
Please keep in mind that you are required by Federal Aviation
Regulations to have on board current charts appropriate to the
flight you are undertaking. The moving map on the SN3308 does
not fulfill this requirement. A current internal database is not
required but is recommended. The internal database supplies
supplemental data only (such as nearest airports and navaids). IFR
flight plan waypoints and courselines are supplied to the SN3308 by
the associated IFR GPS receiver through the receiver’s serial data
link. Supplemental data is intended for positional awareness only
and should not be used for primary navigation. Check your Aircraft
Flight Manual Supplement for any additional specific operational
requirements of your installation.
Also keep in mind that the SN3308 is only a display device; it does
not determine the aircraft’s heading or sense the aircraft’s position.
All information displayed on the SN3308 is generated by external
radios and instruments. It is the pilot’s responsibility to correctly
configure and utilize these external devices. The SN3308 is subject
to all legal and operational limitations of the devices supplying it
data. For example, if your GPS receiver is limited to VFR use only,
you cannot configure the SN3308 to display only GPS data during
an IFR flight. Always refer to your Aircraft Flight Manual
Supplement for any limitations on the use of installed equipment.
1-2
CHAPTER
1
Welcome to the SN3308
Conventions Used in This Manual
The name of a button is always placed within square brackets when
the button is described in text. For example, “...push [SYNC] to
align the heading bug...”
In some cases, the text will describe a two-button sequence, for
example, “...push [SHFT]>[SYNC] to center the needle...”. This
means that the buttons are to be pushed consecutively, not held
simultaneously.
This manual will use terms which should be familiar to aviationminded readers, such as “selected radial” and “magnetic heading.”
Terms which are specific to the SN3308 will be placed in italics, for
example, “lower display area.”
1-3
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Display Overview
CHAPTER
Display Overview
2
Information Sources
The SN3308 will display data from some or all of the following
instruments:
■
NAV1 and NAV2 receivers
■
DME1 and DME2
■
LNAV1 and LNAV2 (GPS or loran)
■
Marker beacon receiver
■
Weather detection (WX-500 Stormscope®)
■
ADF1 and ADF2
■
Directional gyro and fluxgate
The following section of the manual describes the appearance of the
SN3308 display, and identifies each functional element. Detailed
descriptions of these elements and a tutorial guide to their use are
presented in later sections.
Appendix 2 of this manual contains fold-out pages with full-color
illustrations of SN3308 displays. You may want to fold these pages out
for reference while reading this manual.
Display Areas
The primary display area shows either a 360-degree or a 70-degree
ARC view, as indicated by the white compass ring. The white airplane
represents the aircraft’s current position. The primary display area
may also depict the current GPS flight plan, airport, navaids,
intersections, airspace and/or Stormscope® data if the map feature
has been enabled. Several indicators (see below) are also presented
within the primary display area.
The upper display area presents data from the selected course
navigation instrument. The actual data displayed depends on the
navigation source (VOR/DME, GPS, or loran) but it will generally
include bearing, distance and ground-speed, if available. The upper
display area also includes information on the map status, WX-500
Stormscope® status (if installed), and an annunciation of whether the
VOR nav display is currently receiving either a localizer or a full ILS
(localizer/glideslope) signal.
2-1
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Display Overview
The lower display area presents the numeric data associated with the
two bearing pointers. This includes the nav source, bearing and
distance (if available). The upper section of this area also contains a
display of the marker beacon lights and the GPS annunciators, if
configured.
Indicators
Several different symbols, or indicators, are used in each of the
display areas. These are described below: The white symbol is the
“lubber line,” pointing to the magnetic heading. It is always at the top
of the display.
The amber
symbol is the heading bug. This can be set by rotating
the Heading Select knob or pressing [SYNC]. When the display has
been set to 70-degree ARC mode using the [VUE] button, it is
possible for the heading bug to be positioned off the screen. When
this happens, the heading bug “parks” at the side of the screen
nearest to its actual position, with the symbol displayed smaller than
normal and close to the edge of the screen.
The symbol is the course pointer. By rotating the Course Select
knob, you can set the course pointer to the desired course to a VOR
nav source. When a long-range nav source is selected, the course
pointer can automatically rotate to the desired track being sent by
the nav source (i.e. “Auto-Slew”). The Course Deviation Indicator,
or “CDI” (also known as a deviation bar or “D-bar”) is the movable
center section of the course pointer which depicts deviation to the
left or right of course. The CDI is also repeated at the bottom of the
display. Note that the center CDI is not visible when the map display is
enabled or if it is disabled in the [SHFT]>[NAV] function. When the
display is in 70-degree ARC mode, it is possible for the head of the
course pointer to be positioned off the screen. When this happens,
the course pointer “parks” at the side of the screen nearest to its
actual position, with the symbol displayed smaller than normal and
close to the edge of the screen.
2-2
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Display Overview
The single and double arrow
symbols are the two bearing
pointers. Depending on user-selected settings, these pointers may
show the bearing to a VOR, ADF, or GPS waypoint. The numeric
information from the instruments assigned to these pointers is
displayed in the lower display area. The information is displayed in
the same color as the bearing pointer with which it is associated. Also
note that the tail of each pointer can be used to determine the
bearing from the selected nav source.
Data Color Coding
Alphanumeric data displayed on the SN3308 is color coded as follows
GREEN
■
■
■
■
CYAN
■
■
WHITE
■
■
■
■
■
■
RED
■
■
Stormscope® strike data
Information associated with the primary
VHF NAV1 receiver (or NAV2 if in co-pilot
configuration)
Certain GPS annunciators: ACTV, AUTO
and LEG
Class B and C airspace
Information associated with the LNAV (GPS
or loran) receiver(s)
GPS annunciators: HLD, PTK and APPR
(II Morrow GPS only)
Compass rose under normal conditions
Magnetic heading and button labels
Airplane symbol representing aircraft’s
current location
Non-active legs and waypoints of flight plan
To/From indicator
Inner marker indicator
Flags indicating invalid glideslope or
CDI data
Prohibited airspace
2-3
CHAPTER
2
AMBER
Welcome to the SN3308
■
■
■
■
■
YELLOW
■
■
■
Information associated with the cross-side
NAV receiver (NAV2 if in pilot
configuration, NAV1 if in co-pilot
configuration)
Information associated with the cross-side
GPS bearing pointer (GPS2 when
navigating on GPS1, GPS1 when navigating
on GPS2)
Restricted and warning areas
■
Active leg and waypoint of flight plan
ADF bearing pointer
BLUE
■
Outer marker indicator
PURPLE
■
MOAs
MAGENTA
2-4
Heading bug and associated data
GPS annunciator: MSG and WPT. Also
HOLD (Garmin only)
Compass rose when either the gyro or
fluxgate has failed
Middle marker indicator
Moving map waypoints
■
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Operational Basics
CHAPTER
3
Operational Basics
You can configure and control the SN3308 to provide exactly the
information you need at any point in the flight. Configuring the
SN3308 refers to connecting the appropriate data to a given display.
For example, a bearing pointer can be driven by either the VOR or
the GPS receivers. Controlling the SN3308 refers to tailoring the
display to suit your information needs. For example, you may decide
to turn off a bearing pointer completely during the enroute portion
of the flight and use it only during an approach.
Power-up Displays
On initial power-up, several different messages may be displayed on
the SN3308. These messages are displayed along the top of the
display. Some of the more urgent messages will require your
acknowledgement by pressing the flashing [ACK] softkey. (VUE button)
The following messages are displayed on power-up under normal
conditions, and do not require acknowledgment.
VER xxxxx CRC xxxxxxx
■
Displays the current version
of internal software.
NavData Expires ddmmmmyy, xx
■
Displays the expiration date
of the internal Jeppesen
NavData database used for
displaying the moving map.
Lamp xxx Hours Used
■
Indicates the total lamp
usage in hours and minutes.
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CHAPTER
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Operational Basics
The following messages may be displayed on power-up and indicate
an abnormal situation. These messages will require one or more
acknowledgments by pressing the [ACK] softkey.
3-2
CRC Self-Test FAILED
■
Program CRC is not the
expected value. The “CRC
Self Test Failed” message
must not appear on powerup if flight operations are
predicated on the use of the
SN3308 Navigational Display.
LAMP CHANGE SUGGESTED
TEST FAILED xxx HOURS AGO
■
Indicates that the internal
lamp monitoring system has
detected a change in lamp
characteristics and a lamp
change is suggested within
the next 50 hours. This
message can only be
removed by replacement of
the lamp and resetting of
the lamp monitor by your
avionics shop.
TO PERFORM AUTOMATIC LAMP
TEST, RUN FOR 2 MINUTES
AT MAXIMUM BRIGHTNESS
■
The internal lamp
monitoring system
periodically tests the
lamp when running at full
brightness. This message
indicates lack of the test due
to operation below full
brightness for more than 10
hours. Operating the unit at
full brightness for at least
two minutes will allow the
test to complete and will
remove this message from
the next power-up cycle.
CHAPTER
3
Operational Basics
DEMO MODE: NOT FOR FLIGHT
TO EXIT: POWER UP WHILE
HOLDING NAV-MAP-BRG
■
The SN3308 has a special
software mode for use
with the Sandel
demonstrator chassis. This
message should never
appear on an instrument
installed in an aircraft. When
in DEMO mode, certain
installation-specific items
such as gyro settings,
calibrations, etc. are erased.
If the message occurs, do
not use the unit for flight
until it has been reset by an
avionics shop and a
complete ground check has
been performed.
In addition to these power-up messages, Chapter 7 describes a
complete list of both normal and abnormal messages which can be
displayed on the SN3308 at any time.
Selecting the Data
Sensor data is data that comes from various devices within the
aircraft. This includes primary navigational instruments such as the
VOR, ADF and GPS or loran receivers, as well as instruments such as
the directional gyro (DG), fluxgate compass and Stormscope®.
Heading data from the directional gyro and fluxgate compass is
always applied directly to the SN3308’s compass card display, while
other types of sensor data can be displayed in several different ways.
You can control these displays by configuring the course pointer, the
bearing pointers, the map data and the weather data. See illustrations
in Appendix 2.
3-3
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Operational Basics
Selecting the Primary Nav Source
The SN3308’s course pointer and CDI (or “D-bar”) can be driven
from VOR, GPS or loran data.
In some installations, the [NAV] button on the SN3308 is used to
select the primary nav source. In others, an external switch performs
this function and the [NAV] button has no effect. Refer to your
Aircraft Flight Manual Supplement for the details of your installation.
If external switching is used, this section does not apply.
If external switching is not used, then pressing the [NAV] button
repeatedly will cycle through the available choices, which are specific
to your aircraft and were configured by your installer. Selecting a
primary navigation source also connects it to the autopilot, if configured.
Numeric data from the primary nav source, such as distance, bearing
and groundspeed is displayed in the upper display area. If the selected
nav source is a VOR receiver with a localizer frequency tuned, a
status message of “LOC” appears at the upper left of the display as a
reminder. If a valid glideslope signal is also being detected, the status
message changes to “ILS”. The message is turned off if the VOR
receiver is tuned to a normal VOR (omni-bearing) frequency.
In some installations, the ILS Lockout function may be enabled on
the SN3308. This function forces the selection of the NAV receiver
when an ILS frequency is selected. Refer to your Aircraft Flight
Manual Supplement to see whether ILS Lockout has been enabled
for your installation.
NOTE: the following ONLY applies if ILS Lockout is enabled:
Tuning the number 1 VOR receiver (NAV1) to an ILS frequency will
cause the SN3308 to override the nav source selection and will force
NAV1 as the selected nav source. The nav source will return to the
previous selection after the ILS frequency is de-tuned.
While NAV1 is tuned to an ILS frequency and the nav source selection
override is in effect, pressing the [NAV] button will not change
sources. Instead, the following message is displayed: “NAV1 TUNED
TO LOC”. To defeat the override and restore the function of the
[NAV] button, simply select a non-ILS frequency in the NAV1 receiver.
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Operational Basics
Selecting the Bearing Pointer 1 & 2 Nav Source
The SN3308 provides two independent bearing pointers which function
in much the same way as a traditional radio magnetic indicator (RMI).
The head of each bearing pointer indicates the bearing to the nav
source, and the tail of each pointer indicates the bearing from the nav
source. Either pointer can be connected to any available navigation
source: VOR, GPS/loran, or ADF. When GPS, loran or other long-range
nav system is selected as the nav source, the bearing pointer indicates
the bearing to the current active waypoint.
To select which nav sources are connected to either bearing pointer,
press [SHFT]>[BRG]. The resulting menus provide choices for each
pointer including nav source, OFF, and AUTO. AUTO will automatically
select the same source as that selected for the primary course pointer.
The currently selected nav source is bracketed with asterisks (e.g.*AUTO*).
Displaying the Map Data
Map data consists of flight-plan waypoints from the LNAV receiver
(either GPS or loran), as well as nearby airports, navaids, intersections
and airspace from the SN3308’s internal database. The map display is
controlled by pressing the [MAP] button to cycle through the different
map memory locations and by pressing the [ ] and [ ] buttons to
zoom the map in and out. Pressing and holding the [MAP] button for
1.5 seconds will turn off both the map display and the WX-500
Stormscope display, if enabled.
A map memory is a list of which map items are to be displayed and
which are not. There are four preset map memories, labeled 1 through
4. The factory default settings of the preset map memories are listed in
the table below. There is also a scratchpad memory, labeled “S”, which
you can change at any time. To save a particular configuration of
scratchpad memory into one of the presets, press [SHFT]>[MAP] and
then [COPY] to select the desired memory location.
To change the display items in the scratchpad memory, press
[SHFT]>[MAP]. Move the cursor up and down with the [MAP] and
[BRG] buttons, and enable or disable the desired items along the
bottom row of the display. The contents of scratchpad memory will be
retained until you make further changes, even after cycling the power.
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Operational Basics
For a complete discussion of the SN3308 map features, see Chapter 5.
Map Memory Location
Factory Defaults
1
Flight plan waypoints and courselines only.
2
Flight plan waypoints and civil airports
with runways>3500 ft. long.
3
Flight plan waypoints and high-level and
low-level VORs.
Note: both the scratchpad memory and the memory location 4 are empty by
default and will not show up in the [MAP] button rotation until edited.
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Operational Basics
Displaying Stormscope ® Data
If a BF Goodrich WX-500 lightning detection sensor has been installed
in the aircraft, it can be configured to display on the SN3308.
To turn the lightning display on and off, and to control the various
functions of the WX-500 sensor, press [SHFT]>[ ] to display the
related softkeys. The available WX-500 functions are listed below. For
more information, refer to the WX-500 User’s Guide.
Lightning strikes are displayed in the SN3308’s primary display area,
and are automatically synchronized with the aircraft’s heading. A
status word in the upper right corner of the SN3308 display is
dedicated to the WX-500. In normal operation, this status word
shows the current strike rate, preceded by an “S” for strike mode or
a “C” for cell mode.
Softkey Label
Function
OFF
Turns off the Stormscope® display and clears
the WX-500 status word.
CELL
Selects “CELL” mode, which displays a lightning
symbol for each group of individual strikes.
STRK
Puts the WX-500 in “STRIKE” mode, which
displays a lightning symbol for each individual strike.
CLEAR
Clears the WX-500 of all symbols.
ESC
Exits the sub-menu mode.
SETUP MENU
Accesses additional WX-500 system commands, see
next page.
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Operational Basics
WX-500 SETUP MENU FUNCTIONS
SELF TEST
Causes the WX-500 to execute
a self-test.The result is
displayed in the WX-500 status
word. NOTE: ten seconds or
more may be required for the
test to complete.
DEMO
Causes the WX-500 to send a
series of simulated lightning
strikes to the SN3308 display.
ESC
Exits the sub-menu mode.
NOTE: Self-test or DEMO mode may be operated in-flight if desired with no
adverse affect on SN3308 operation.
Controlling the Display
The SN3308 is capable of displaying a tremendous amount of data at
once. Using the SN3308 effectively means balancing desirable
redundancy against undesirable clutter. This section describes the
controls available to help you achieve that balance.
ARC View and 360-Degree View
As with sophisticated EFIS systems, the SN3308 allows you to switch
between a traditional 360-degree view of the compass rose (see
illustration 1 in Appendix 2) and a forward-looking ARC view (see
illustration 2 in Appendix 2). The ARC view places the airplane symbol
at the bottom of the screen and the heading indicator along an ARC of
approximately 70-degrees around the top of the screen. Arc view
maximizes the display of the ground track ahead of the aircraft and
provides the greatest amount of screen area for map data.
Press [VUE] to switch back and forth between ARC and 360-degree
views. This action only affects the screen display – all navigation
sources, bearing pointers, and other settings remain the same.
3-8
CHAPTER
Operational Basics
3
Displaying the Deviation Bar
The small course deviation bar (or “D-bar”) display in the lower
portion of the screen is visible at all times. In addition, a larger
conventional D-bar can be displayed. This D-bar will be displayed only
under the following conditions:
■
The “DEV BAR” setting under [SHFT]>[NAV] must be
turned ON
■
The map display must be turned OFF
■
The [VUE] mode must be 360-degree view
To turn the map off, press [MAP] until “MAP OFF” appears in the
upper right portion of the screen. Note that if the WX-500
Stormscope display is turned on, “MAP OFF” will not appear even
though the map is deselected. To turn off both the map and the
Stormscope display simultaneously, press and hold the [MAP] button
for at least 1.5 seconds.
Displaying the Course Pointer
The course pointer itself can be removed from the display to allow
navigating on the courseline from your LNAV receiver. Press
[SHFT]>[NAV], then the [CRS PTR] softkey to toggle the setting
between “AUTO” and “ON”.
When set to “ON”, the course pointer is always displayed.
When set to “AUTO”, the course pointer will be turned off under the
following conditions:
■
An LNAV receiver (GPS or loran) is selected for
navigation, and
■
A waypoint or flight plan is entered, and
■
Flight plan waypoints are enabled on the current
map memory.
When NAV is selected for navigation, the course pointer is always
displayed.
3-9
CHAPTER
3
Operational Basics
Auto-Slewing the Course Pointer
One unique feature of the SN3308 is its ability to automatically rotate
the course pointer to the desired course being sent digitally from a
GPS or loran. This feature is called “auto-slewing,” and is especially
useful during a GPS approach or while flying a complex flight plan.
To enable auto-slewing, press [SHFT]>[NAV], then press the softkey
labeled “AUTO SLEW” to toggle this feature on and off. With autoslew set “ON”, the course pointer will be set to the desired track
being sent by the selected GPS or loran. Turning the course select
(OBS) knob has no effect, other than displaying the message
“LEG/AUTO (AUTO SLEW) IS ON”. With auto-slew set “OFF”, the
course select knob rotates the course indicator in the same way as
a conventional HSI.
Note that certain GPS receivers such as the King KLN-90B and Garmin
GNS 430 support an ‘OBS’ or ‘HOLD’ mode which when active will override
auto-slew.
Centering the Heading Bug or Needle
To rapidly set the heading bug to the aircraft’s present heading,
press [SYNC]. To rapidly set the course pointer to the current
Direct-to course (i.e., to center the CDI), press [SHFT]>[SYNC].
When no valid course is available, such as when flying a LOC/ILS
approach, [SHFT]>[SYNC] rotates the course pointer to the lubber
line (current heading) instead.
Setting the Map Range
Whenever map data is being displayed, the [ ] and [ ] buttons are
available to zoom the image in and out. Each press of either button
selects the next higher or lower map range. The map range refers to
the depicted distance, in nautical miles, from the airplane symbol to
the outside of the compass tick marks. The current map range is
displayed at the upper right portion of the screen and is selectable
between 1 and 1000 nautical miles.
3-10
CHAPTER
3
Operational Basics
When either a direct-to waypoint or a full flight plan has been entered
on the LNAV, a one-touch auto-ranging function is available on the
SN3308. Pressing and holding the [ ] button for at least 1.5
seconds will cause the map range to increase smoothly until reaching
a setting at which the entire flight plan is visible. Similarly, pressing
and holding the [ ] button for at least 1.5 seconds will set the map
range to a value at which only the current waypoint is visible.
A-B Function
A unique feature of the SN3308 is its ability to maintain two different
groups of display settings and to quickly swap back and forth
between them. This allows you to set up a particular screen display
and memorize the settings for later use. For example, your preferred
“enroute” setup might be ARC view with only bearing pointer 1
displayed, connected to a VOR navaid. Your “approach” setup might
be in 360-degree view with bearing pointer 2 displayed, connected to
an ADF (to monitor the locator outer marker). In this case, you
would simply set up either display, press [A-B], and then set up the
other display. Pressing [A-B] repeatedly will then switch between the
two displays. The current display setting in use is indicated by the
letter “A” or “B” at the top of the screen.
Press [SHFT]>[A-B] to make both displays identical. Whichever
display is visible at the time [SHFT]>[A-B] is pressed will be copied
into the non-visible display. At this point, pressing [A-B] will have no
apparent effect (other than changing the “A” or “B” legend) since
both displays have the same content.
3-11
C
H
A
P
T
E
R
4
Button Operations
Button Operations Map
NAV
PUSH: Selects the navigational instrument supplying
information to the main course indicator, CDI, and upper
display area. Each touch of the button cycles through the
choices, which depend on installed equipment and
selections made at the time of installation. A typical
sequence is NAV1, GPS1, GPS2. The selected option is
displayed on-screen next to [NAV]. In some installations,
tuning an ILS frequency on NAV1 will override this setting
and cause NAV1 to be selected.
NOTE: In some installations, the [NAV] button is disabled
and nav source selection is accomplished with an external
switch. See your Aircraft Flight Manual Supplement for
more information.
N
A
V
HOLD: No action performed.
4
SHFT›NAV
Displays the GPS mode selection switches and nav-related
user settings.
GPS MODE: Toggles the GPS between “HOLD” (or
“OBS”) MODE and “SEQ” (or “LEG”) mode.
GPS ARM:
Sends the approach ARM command to the
GPS, if configured.
AUTO SLEW: Allows the GPS or loran to automatically
rotate the course pointer to the desired track.
4-1
CRS PTR:
Selects display of the course pointer. When
set to AUTO, course pointer will be hidden
when LNAV is selected with a current
waypoint and flight plan waypoints are
enabled on the current map display.
DEV BAR:
Selects display of the large horizontal and
vertical D-bars in the center of the screen.
Button Operations Map
NAV
Selects primary Nav source.
27.5NM
N
A
V
G
P
S
1
250 KT
RNG 75nm
307˚
BUR 307˚
27.5 nm
30
B
307˚
N
A
V
G
P
S
1
307˚
WX
30
33
W
3 V
6 U
0 E
N
BUR
GPS 1
NAV 1
M
A
P
24
1
+ +
++
21+ +
+
LAX18
6
B
R
G
CRQ
MSG
Other
3
15
E
12
NAV1
018˚
ADF1
170˚
SHFT
SYNC
N
A
V
A-B
SHFT›NAV
4
Invokes “soft keys” that control approach mode
functions of GPS. Also allows for setting of nav-related
user preferences.
NAV
N
A
V
30
V
U
E
33
W
N
BUR
M
A GPS
P MODE
24
+ +
++
21+ +
+
LAX18
6
B
R GPS
G ARM
CRQ
MSG
3
15
E
12
OFF
AUTO
SLEW
ON
CRS
PTR
ON
HSI
DBAR
SHFT
SYNC
A-B
Note: Actual softkey labels will vary depending on the GPS receiver used.
4-2
Button Operations Map
MAP
PUSH: Controls the display of moving map data. Cycles
through the map scratchpad and memories.
HOLD: Turns the map display off. MAP OFF will be
displayed at the top of the screen.
M
A
P
4
SHFT›MAP
Accesses the map setup function.
See chapter 5 for more detail.
4-3
Button Operations Map
MAP
Displays a map memory or turns the map off.
Note: When map or weather display is on, CDI will only display on the
lower portion of the screen.
250 KT
RNG 75nm
307˚
BUR 307˚
27.5 nm
B
307˚
M 1
A
P
S
1
2
3
4
24
+
+
21+
Scratchpad
Map Memory 1
Map Memory 2
Map Memory 3
Map Memory 4
N
A
V
G
P
S
1
307˚
WX
30
33
W
3 V
6 U
0 E
N
BUR
M
A
P
24
1
+ +
++
21+ +
+
LAX18
3
6
B
R
G
CRQ
MSG
15
E
12
NAV1
018˚
ADF1
170˚
SHFT
SYNC
M
A
P
A-B
SHFT›MAP
4
Accesses the map setup function.
MAP SETUP 1
Map Setup Items
Airports
N E
A S
V C
30
RNG 75nm
C V
O U
P E
Y
33
W
N
BUR
Airspace
Intersections
NDBs
VORs
24
M
A
P
B
R
G
+ +
++
21+ +
+
LAX18
6
*
CRQ
MSG
15
Flight Plan &
Waypoints
018˚C I V I L
SHFT
3
E
12
MIL
PRIV
SYNC
A-B
4-4
Button Operations Map
BRG
PUSH: Controls the display of the two bearing pointers,
and their associated data displays in the lower data area.
Each press advances through the following list:
BRG1
BRG2
BOTH
OFF
NOTE: The bearing pointer nav source is pilot selectable
(see below). If only one bearing pointer has a nav source
assigned, pushing [BRG] simply turns the active bearing
pointer on and off; if no nav source is assigned to either
pointer, pushing [BRG] has no effect.
B
R
G
HOLD: Turns both bearing pointers off.
4
SHFT›BRG
Assigns a nav source (including the option of “OFF”) to
each of the two bearing pointers. Pushing [SHFT]>[BRG]
brings up two selection columns, one for each bearing
pointer. Each column lists all the available nav sources
installed. Asterisks show the source currently selected.
Pressing the buttons below the column steps through the
choices for the bearing pointer. Press the [ESC] softkey to
accept any changes made and exit from the selection
menus.
NOTE: The “AUTO” option will automatically assign the
selected primary nav source to bearing pointer 1.
4-5
Button Operations Map
BRG
Turns bearing pointers on/off.
307˚
BUR 307˚
27.5 nm
250 KT
RNG 75nm
B
307˚
N
A
V
BRG 1
BRG 2
BRG 1 & 2
Off
G
P
S
1
30
307˚
WX
33
W
3 V
6 U
0 E
N
BUR
24
M 1
A
P
+ +
++
21+ +
+
LAX18
6
B
R
G
21
B
R
G
CRQ
MSG
15
E
12
NAV1
018˚
MSG
3
ADF1
170˚
SHFT
SYNC
B
R
G
A-B
SHFT›BRG
4
Allows assignment of nav sources to BRG 1 & 2
pointers. Currently selected nav source is indicated by
asterisk (e.g. *AUTO*).
ASSIGN BEARING POINTERS
B
N
A
V
30
V
U
E
33
W
N
BUR
24
M
A
P
+ +
++
21+ +
+
LAX18
6
B E
R S
G C
SG
OFF
*AUTO*
NAV1
NAV2
GPS1
ADF1
SHFT
MSG
15
OFF
*AUTO*
NAV1
NAV2
GPS1
ADF1
SHFT
3
CRQ
15
12
SYNC
E
OFF
NAV1
NAV2
GPS1
*ADF1*
A-B
OFF
NAV1
NAV2
GPS1
*ADF1*
A-B
4-6
Button Operations Map
SHFT
PUSH: [SHFT] acts as a shift key, permitting access to a
selection of sub-menus for certain buttons.
Failure to select a sub-menu for 20 seconds, or pushing
[SHFT] a second time cancels the sub-menu access and
returns to a normal display.
HOLD: No action performed.
S
H
F
T
4
4-7
Button Operations Map
SHFT
Accesses sub-menus for certain buttons.
GPS Functions,
D-BAR, Course
Pointer &
Auto-Slew
Settings
Map setup
functions
SELECT SUB FUNCTIONS
N NAV
A
V
30
N
BUR
M MAP
A
P
24
+ +
++
21+ +
+
Centers CDI
(When auto-slew
disabled)
WX
LAX18
WX-500 Stormscope
functions
®
3
6
B BRG
R PTRS
G
CRQ
MSG
BRG Pointer
Source
selection menu
V
U
E
33
W
15
E
12
ESC
DTK
MEM
A=B
SHFT
SYNC
A-B
Copies current
screen settings
to both A & B
S
H
F
T
ESC
SHFT
4
4-8
Button Operations Map
SYNC
PUSH: Heading sync. Immediately moves the heading bug
to the current heading
HOLD: No action performed.
S
Y
N
C
4
SHFT›SYNC
Course sync. Sets the course pointer “direct-to” the
current nav source. If a VOR is the selected nav source,
the current radial is chosen as the direct-to course
information, and the CDI needle centers with a “TO” flag
indication. If the selected nav source is a GPS or loran,
this performs the direct-to function if auto-slew is off
(see [SHFT]>[NAV]).
If a localizer is tuned, or a received nav signal is too weak
to accurately determine the current bearing or the display
is flagged, the course pointer will be turned to the current
heading.
4-9
Button Operations Map
SYNC
Sets “Heading Bug” to present heading.
250KT
MAP OFF
307˚
BUR 307˚
27.5 nm
B
307˚
N
A
V
G
P
S
1
307˚
30
3 V
6 U
0 E
33
W
N
24
M
A
P
3
21
6
B
R
G
E
MSG
15
15
12
NAV1
018˚
12
S
Y
N
C
ADF1
170˚
SHFT
SYNC
A-B
SYNC
SHFT›SYNC
4
Rotates course pointer to direct-to, centering CDI. If no
valid nav data, turns course pointer to current heading.
307˚
BUR 307˚
27.5 nm
250KT
MAP OFF
B
307˚
N
A
V
G
P
S
1
307˚
30
3 V
6 U
0 E
33
W
N
24
M
A
P
3
21
ESC
SHFT
6
B
R
G
E
MSG
15
NAV1
018˚
15
12
ESC
SHFT
12
DTK
SYNC
ADF1
170˚
A-B
DTK
SYNC
4-10
Button Operations Map
A-B
PUSH: The SN3308 can display either of two
presentations of information, referred to as A and B. [A-B]
cycles the display between these two presentation
memories, each of which retains the selected values for:
■
Map range
■
Map selection
■
Bearing pointers ON or OFF
■
[VUE] selection
The only user settings not retained are the primary nav
source selection and the actual course pointer and heading
bug settings. No user action is required to store changes
to A or B. Any change to the above parameters that is
made while A is active become part of A. Any changes
made while B is active become part of B.
A
B
Pushing [A-B] swaps the active screen for the inactive
screen. Either A or B is displayed at the top of the display
indicating which memory is currently active.
4
This two-view option can be used in a wide variety of
ways. It can do something as simple as flip-flopping
between screens that differ only in the map range
depicted; or it can be used to switch from a simple HSI
view to a full EFIS-like display.
HOLD: No action performed.
SHFT›A-B
Copies the active memory into the inactive memory,
erasing the previous settings in the inactive memory.
(i.e.. If A is active, pressing [SHFT]>[A-B] will copy the
settings in A over to B).
4-11
Button Operations Map
A-B
Toggles between screen memory A and screen memory B.
BUR 307˚
27.5 nm
A
250 KT
MAP OFF
307˚
307˚
N
A
V
G
P
S
1
30
W
250 KT
RNG 75nm
B
307˚
3 V
6 U
0 E
33
307˚
BUR 307˚
27.5 nm
307˚
N
A
V
N
G
P
S
1
30
307˚
WX
33
W
3 V
6 U
0 E
N
BUR
24
M
A
P
M
A
P
3
24
1
+ +
++
21+ +
+
21
6
B
R
G
15
CRQ
MSG
15
12
3
6
B
R
G
E
MSG
LAX18
E
12
NAV1
018˚
SHFT
SYNC
A-B
ADF1
170˚
SHFT
E
SYNC
A
B
A-B
OM
ADF1
170˚
A-B
SHFT›A-B
4
Copies active memory into inactive memory.
BUR 307˚
27.5 nm
A
250 KT
MAP OFF
307˚
307˚
N
A
V
G
P
S
1
30
W
N
A
V
N
24
M
A
P
3
G
P
S
1
307˚
30
3 V
6 U
0 E
33
W
N
24
M
A
P
3
21
21
6
B
R
G
E
MSG
15
SHFT
B
307˚
3 V
6 U
0 E
33
250 KT
MAP OFF
307˚
BUR 307˚
27.5 nm
307˚
6
B
R
G
E
MSG
15
12
SYNC
A-B
SHFT
12
SYNC
A-B
4-12
Button Operations Map
DOWN-ARROW
PUSH: Decreases the map range, in nautical miles, shown
on the main display area. Range is always measured from
the white airplane indicator to the outside of the compass
tick marks.
Pushing the [ ] button decreases the map range from
1000 nautical miles down to 1 nautical mile. The currently
selected map range is shown at the top of the display.
When the bottom of the map range is reached, further
pushes of [ ] have no effect.
→
HOLD: If a flight plan or a direct-to waypoint is active
on the LNAV receiver, the map range will auto-scale until
reaching a setting at which the current active waypoint
is visible.
4
SHFT›DOWN-ARROW
No function is performed by this button sequence.
4-13
Button Operations Map
→
Zooms in map range.
307˚
BUR 307˚
27.5 nm
250 KT
RNG 75nm
B
307˚
N
A
V
G
P
S
1
30
307˚
WX
33
W
3 V
6 U
0 E
1000nm
750nm
500nm
N
BUR
M
A
P
24
1
+ +
++
21+ +
+
LAX18
6
B
R
G
CRQ
MSG
15
E
6
2nm
1.5nm
1nm
12
NAV1
018˚
ADF1
170˚
SYNC
→
SHFT
3
A-B
4
4-14
Button Operations Map
UP-ARROW
PUSH: Increases the map range, in nautical miles, shown
on the main display area. Range is always measured from
the white airplane indicator to outside of the compass tick
marks.
Pushing the [ ] button increases the map range from 1
nautical mile to 1000 nautical miles. The currently selected
map range is shown at the top of the display. When the
top of the map range is reached, further pushes of [ ]
have no effect.
→
HOLD: If a flight plan or a direct-to waypoint is active on
the LNAV receiver, the map range will auto-scale until
reaching a setting at which the entire flight plan is visible.
4
SHFT›UP-ARROW
If a WX-500 Stormscope® lightning detection sensor is
configured with the SN3308, a softkey is provided to
access Stormscope functions. Softkeys are labelled with
the following selections: OFF, CELL, STRK, CLEAR and
SETUP MENU. Selecting SETUP MENU displays a submenu which provides access to the SELF TEST and DEMO
functions.
If a WX-500 is not present in the system, this button
sequence has no effect. The message “WX NOT
INSTALLED” will be displayed at the top of the screen.
4-15
→
Button Operations Map
Zooms out map range.
307˚
BUR 307˚
27.5 nm
250 KT
RNG 75nm
B
307˚
N
A
V
G
P
S
1
30
307˚
WX
33
W
3 V
6 U
0 E
N
BUR
24
1
+ +
++
21+ +
+
LAX18
3
CRQ
MSG
15
E
12
NAV1
018˚
ADF1
170˚
SYNC
A-B
→
SHFT
SHFT›
500nm
750nm &
1000nm
6
B
R
G
→
M
A
P
1nm
1.5nm
2nm
3
4
Displays softkeys for controlling Stormscope® sensor, if
installed.
BFG STORMSCOPE
N
A
V
30
V
U
E
33
W
N
3
BUR
M
A
P
24
+ +
++
21+ +
+
LAX18
3
E
S
C
E
S
C
6
B
R SETUP
G MENU
CRQ
15
CLEAR
E
12
OFF
CELL
STRK
SHFT
SYNC
A-B
4-16
Button Operations Map
VUE
PUSH: Toggles between displaying a 360-degree compass
view and a 70-degree ARC view. Note that in the ARC
view, the location of the aircraft is at the bottom of the
display. Appendix 2 contains illustrations of 360-degree
view and ARC mode view.
HOLD: No action is performed.
V
U
E
4
SHFT›VUE
No function is performed by this button sequence.
4-17
Button Operations Map
VUE
Toggles between 360 and ARC (forward) view.
PL 75nm
307˚
3 V
6 U
0 E
N
310˚
BUR 307˚
27.5 nm
250 KT
RNG 75nm
B
307˚
N
A
V
G
P
S
1
30
W
M
A
P
1
N
A
V
N
BUR
24
LAX
3
B
M
A
P
G
P
S
1
307˚
6
CRQ
MSG
15
30
33
BUR
1
V
U
E
LAX
B
R
G
MSG
12
NAV1
018˚
SHFT
E
A V
R U
C E
BUR
21
B
R
G
250 KT
RNG 75nm
307˚
3 V
6 U
0 E
33
310˚
BUR 307˚
27.5 nm
307˚
ADF1
170˚
SYNC
A-B
NAV1
018˚
SHFT
ADF1
170˚
SYNC
ENT
4
4-18
CHAPTER
4
Button Operations Map
Button Summary
The functions associated with each of the nine buttons is summarized
below:
Button
Function Performed
VUE
Switches between 360-degree compass rose view
and 70-degree ARC mode view.
Increases the range (“zooms out”) on the map and
Stormscope® displays if either is turned on.
Decreases the range (“zooms in”) on the map and
Stormscope® displays if either is turned on.
4-19
A-B
Switches between two groups of screen settings.
Allows the pilot to set up two different displays and
swap back and forth between them with a single
button.
SYNC
Moves the heading bug to the top of the display, to
align it with the current aircraft heading.
SHFT
Allows access to sub-menu functions.
BRG
Turns the bearing pointers on and off. Press
repeatedly to display pointer 1, pointer 2, both, or
“OFF”.
MAP
Selects map memory to display or turns it off
completely.
NAV
Selects the nav source to be connected to the HSI
course pointer, i.e. the primary nav source.
CHAPTER
4
Button Operations Map
Sub-Menu Summary
The [SHFT] button accesses a sub-menu mode which provides even
more functions. The following table summarizes the sub-menu
functions:
Button
SCREEN LABEL
VUE
FUNCTION PERFORMED
No function performed.
WX
Accesses control functions of the WX500 Stormscope® remote sensor, if
installed. Turns Stormscope® display
on or off, clears existing display and
allows selection of cell versus strike
mode. Also accesses sytem sub-menu
for self-test or demo mode.
No function performed.
A-B
A=B
Copies the current screen settings into
the inactive screen setting memory.
SYNC
DTK
Performs a course sync, i.e. turns the
course pointer to the direct-to source.
SHFT
ESC (flashing)
Cancels the SHFT function.
BRG
BRG PTRS
Presents source selection for both
bearing pointers.
MAP
MAP
Accesses map setup functions.
NAV
NAV
Accesses NAV functions.
Selects approach mode control
buttons for GPS, if enabeled.
Selects AUTO-SLEW, which allows the
long-range nav source to automatically
set the course pointer to the desired
track.
Controls display of the center D-bar
for the CDI and GS needles.
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Enhanced Moving Map Features
CHAPTER
Enhanced Moving Map Features
5
Overview
MAP operations allow you to display navigation information in the
form of a “moving map” directly on the SN3308 display. You have
extensive control over what kinds of navigation information are
displayed on the map:
■
Airports/Runways
■
Controlled and Special Use Airspace
■
VORs
■
NDBs
■
Intersections
■
GPS Flight Plans (with or without course line)
Within each of these classes of map objects you may fine tune exactly
which items you want displayed. For example, you may choose to
exclude military or private airports, or those with unpaved runways
or runways shorter than a particular length. Similarly, you may elect
not to display terminal VORs or low-powered NDBs, or to display
Class B airspace and Restricted Areas but exclude Class C airspace and
MOAs. As you’ll see, the SN3308 offers great flexibility in how you
configure your moving map display.
Finally, you may store up to four different map configurations, and
then quickly switch from one to another as appropriate to your phase
of flight. For instance, when cruising at FL180 or higher, you might
want to display only high-altitude VORs (but not Terminal or Lowaltitude VORs), Special Use Airspace (but not Class B or Class C), and
only airports with paved runways of 6,000 feet or longer. The
SN3308 allows you to save such a map configuration in one of its
four map memories and then recall it as needed.
All the airports, navaids and intersections on the moving map, except
for GPS flight plan fixes, come from the internal database of the
SN3308 and are color-coded amber. GPS flight plan fixes come from
the GPS receiver and are color-coded magenta/white. Controlled and
Special Use Airspace also comes from the internal database, and are
color-coded according to its type (Class C and Class B in green, MOAs
in purple, Restricted and Warning Areas in yellow, and Prohibited
Areas in red).
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Enhanced Moving Map Features
Note: The SN3308 requires a connection to a GPS receiver in order to display
the moving map. The map display, including the flight plan from the GPS1
receiver, will also be shown when NAV1 or NAV2 is selected as the primary
Nav source.
Internal Database
Non-flight plan data including airspace is referred to as the “internal
database” and is stored in the SN3308’s internal memory. The
internal database can be periodically updated from a Windows-based
PC or laptop. The expiration date of the internal database is shown
during the power on sequence. As this database is for supplemental
use only and not intended for primary navigation, it is not required
to be kept up to date. Database updates are available directly from
Sandel Avionics, and may be purchased online at www.sandel.com.
Newly manufactured units may not contain an internal database when
shipped from the factory. Your avionics installer should obtain and
install the most recent database prior to completion of a new
installation. The SN3308 will operate normally without an internal
database except that only GPS flight plan waypoint information will
then be displayed.
Map Controls and Displays
Information associated with control of the map is displayed as follows:
5-2
■
The map status bar is shown just to the right of the
MAP button and shows icons for the currently enabled
map items.
■
The map memory location currently being displayed is
shown at the top of the map status bar as “S”, “1” “2” “3”
or “4”.
■
The map range (or “MAP OFF”) is shown in the upper right
of the display.
CHAPTER
Enhanced Moving Map Features
5
Map memory
currently
displayed
250 KT
RNG 75nm
307˚
BUR 307˚
27.5 nm
B
307˚
N
A
V
G
P
S
1
307˚
WX
30
33
W
Cycles through
map memories
Map status bar
Current map
range
N
BUR
M
A
P
3 V
6 U
0 E
1
24
+ +
++
21+ +
+
LAX18
Increases
map range
6
B
R
G
CRQ
MSG
15
Decreases
map range
E
12
NAV1
018˚
SHFT
3
ADF1
170˚
SYNC
A-B
Map operations are controlled with the following buttons:
■
[MAP] – Press repeatedly to cycle through the map memories
including MAP OFF. Holding the [MAP] button will turn off
the map without cycling through the memory locations.
■
[ ] and [ ] – Press to zoom the map range in or out.
Holding the [ ] button auto-ranges to the current
waypoint and holding the [ ] button auto-ranges to the
end of the current flight plan.
■
[SHFT]>[MAP] – Accesses the map setup function and
allows enabling or disabling of various map items.
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Enhanced Moving Map Features
Map Memories
The [MAP] pushbutton cycles from MAP OFF through a maximum of
four possible map memory locations, or memories, plus a scratchpad
memory. The map memory you are currently displaying is shown at
the top of the map status bar and will show S, 1, 2, 3 or 4.
Any memory which is empty is skipped during the MAP rotation
sequence. In the default setup of the SN3308, memories 1, 2 and 3
contain factory settings, and memories S and 4 are empty.
Map memory S has been designated the scratchpad memory and the
remaining memories 1-4 are designated as preset memories. All onscreen changes are made to S but can be copied to memories 1-4 as
desired. The purpose of having a separate scratchpad is to allow you
to quickly add or delete items from your map display to attend to a
current flight situation, without changing presets you may already
have made.
The map setup function, described on page 5-7, shows how to make
changes to the map memories. The following table lists the 24 items
that can be independently configured for each map memory:
There are a large number of selection items. However, the organization
of the SN3308 is intended to make the map setup process as easy as
possible. You should experiment often with the map settings until you
develop the style of operation best suited to your flying.
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Enhanced Moving Map Features
Status Bar
Icon
Item
Softkey
Label
Page
Color
Setup
Map
Airports
Civil
Military
Private
CIVIL
MIL
PRIV
Amber
Amber
Amber
1
Runway Length 3
MIN LEN
- 2
Grass Surface
GRASS SURFC
-
Other Surface
OTHER SURFC
-
Class B
‘B’
Green (dashed)
Class C
‘C’
Green (dotted)
MOA
MOA
Purple (dotted)
Restricted
RESTR
Yellow (dashed)
Warning
WARN
Yellow (dotted)
Prohibited 1
-
Red (solid)
-
Enroute
ENRT
Amber
5
SID
SIDS
Amber
STAR
STARS
Amber
Airspace
Intersections
NDBs
VORs
Outer Marker
OM
Amber
Low Power
L PWR
Amber
High Power
H PWR
Amber
High Level
HI LV
Amber
Low Level
LO LV
Amber
Terminal
TERM
Amber
GPS
Waypoints or
Flight plan
Waypoints and
WPTS
courselines
Waypoint
Magenta:
FPL ENA
3
4
6
7
8
currently
active leg;
FPL SYM
symbols 2
White:
previous or
next leg
TACAN on/off 4
Adds to VORs
TACAN
Amber
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Enhanced Moving Map Features
1
Prohibited airspace is shown in Red and cannot be turned off on the
map display.
2
Flight plan waypoints can be selected to show as facility icons (such as
VOR or INT icons) or to show as waypoint icons only
using map
setup page 8. Most RS-232 GPS receivers are limited to showing
waypoint icons only.
3
Runways below a selectable minimum length may be masked from the
display by pressing the MIN LEN softkey. This parameter may be set
to 2000', 2500', 3000', 3500', 4500', 5500', 6500' or ALL.
4
TACAN is a single setting which will affect all of the map memories.
This can be set from within any map memory and will affect all map
displays.
Getting Started – Example
The Factory Default SN3308 map memories are set up as follows:
S: Empty
1: Flight plan only with courselines
2: Flight plan and paved civil airports over 3500' in length
3: Flight plan and HI and LO VORs
4: Empty
To get started, we recommend you try some operations on the
ground. Ensure that your GPS receiver is operating, and enter a flight
plan using its normal procedures. You can use the simulator mode of
your GPS receiver if it has one, or if it does not, make sure the flight
plan you enter is near the airport where you are located.
Press [MAP] until “1” shows at the top of the map status bar. With
this setting, you should see the waypoint icon
next to the [MAP]
key, indicating that flight plan waypoints are enabled on the display.
Use the [ ] or [ ] key to adjust the display range, which is the
number of miles between the symbolic airplane and the outer
compass ring.
You should see your GPS flight plan on the display. The active leg and
waypoint will be shown in magenta and the other waypoints and
courselines will be shown in white.
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Enhanced Moving Map Features
Set the map range to 30 nm, and press [MAP] so that “2” is displayed.
The display should show your flight plan as above, overlaid with local
airports with runways over 3500'. Note that the airport icon shows
on the map status bar indicating airports are being displayed, and
that on-screen airports are shown in amber. The amber color
indicates that the source of the airport data is coming from the
internal database. The flight plan information, coming from the GPS
receiver, is displayed in magenta and white.
Lower the map range to 10nm, and notice that as the display zooms
in any airport shown will change from the airport icon into a runway
(or multiple runways). Below 7nm the runway numbers will also be
added so that as you zoom in you can plainly see the airport
identifier, runways, and runway numbers. During flight, the display
will rotate and update with the aircraft in real-time.
Press [MAP] to change to memory 3. Notice that airports will be
removed and instead local LO and HI VORs will be shown in Amber.
Note that on the map status bar the airport icon will be removed and
the VOR icon will display, indicating that VORs are enabled.
Pressing [MAP] again will skip memory 4, because it is empty, and
jump directly to MAP OFF. All the map information will be removed
from the screen. Further presses of the [MAP] key will again cycle
through map memories 1, 2 and 3 and then back to MAP OFF.
Map Setup
We are about to change what is displayed on the map, using memory
1 as the baseline. Start by pressing [MAP] until “1” shows at the top
of the map status bar.
Press [SHFT]>[MAP] to enter Map Setup. All settings in memory 1
are copied to S (the scratchpad memory), and you can now make
non-permanent changes with the softkeys. Notice that you are editing
memory S. If you want to save these changes back into memory 1,
you can use the COPY function, described on page 5-9.
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Enhanced Moving Map Features
The following actions occur every time you enter [SHFT]>[MAP]:
■
The currently selected display memory is copied into S.
■
S becomes the active memory.
■
You enter Map Setup and can make changes to the map display.
■
The map status bar shows all icons, with active items shown
with an *. A moveable cursor allows you to select which icon
category you want to change.
Quits
map setup
MAP SETUP 1 RNG 75nm
N E
A S
V C
30
C V
O U
P E
Y
33
W
N
Map
status cursor
Moves
map station
cursor up
BUR
24
M
A
P
B
R
G
+ +
++
21+ +
+
CRQ
MSG
15
SHFT
3
Increases
map range
6
*
018˚C I V I L
Moves
map station
cursor down
LAX18
Copies current
settings to memory
Decreases
map range
E
12
MIL
PRIV
SYNC
A-B
Softkeys. Press to
toggle settings on/off
Map setup allows you to change the scratchpad memory S by adding
or deleting items from the map category by category. The two
buttons located next to the map status are used to move the map
status cursor up and down, selecting the different map setup items
you want to change.
Notice that when you select each setup item, the three softkeys at the
bottom of the screen change and are used to make your selections.
The [ ] or [ ] keys continue to function normally so you can
change the map range during setup operations to see the effect of
your changes.
For example, highlight the Airspace icon on the map status bar, and
then use softkeys ‘B’ and ‘C’ to enable airspace depiction and observe
5-8
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Enhanced Moving Map Features
5
the map display. Assuming you are in a location with nearby Class B
or C airspace, you should see the airspace boundaries on your display.
Notice that you are displaying scratchpad memory S, and you have
added airspace depiction.
Note: During map setup operations the SN3308 continues to operate
normally. The compass and deviation displays are still active, and the HDG
and CRS knobs still operate.
Escaping Map Setup
Note the flashing ESC softkey. Pressing this softkey will immediately
exit the map setup page, and the map display will remain as you
programmed it. You should see both your flight plan and airspace on
the map display.
Setting Other Items
Using [SHFT]>[MAP] again, try changing other items on different
map setup pages and observe their effects. Note that you are not
changing memories 1-4 by these actions. In fact, if during normal
operation you are displaying any memory 1-4, you can press
[SHFT]>[MAP] to create a new baseline for the scratchpad memory.
Copying Settings into Preset Memories 1-4
Map settings can be retained for future use by storing them into one
of the four memory presets. This is done by copying the scratchpad
memory into one of the presets using the COPY function.
■
Press [SHFT]>[MAP] to access the map setup function and
adjust the settings as desired.
■
Press the COPY softkey.
■
Press one of the memory softkeys (1-4) to copy the
scratchpad into that memory. (To exit without saving,
press the QUIT COPY softkey.)
■
Press the ESC softkey to exit the map setup function.
The changes made during map setup are now stored in the memory
preset you chose and can be recalled during the map rotation.
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Enhanced Moving Map Features
Eliminating a Map Memory from the
Rotation Sequence
You may choose to have fewer than 4 map presets to reduce the
number of memories in the MAP key rotation sequence. You can
eliminate a preset memory by deleting all items in that memory.
■
Press [SHFT]>[MAP] to access the map setup function.
■
Press the COPY softkey.
■
Clear the scratchpad memory by pressing the CLEAR
softkey. The message ‘SCRATCHPAD CLEARED’ will be
shown briefly at the top of the display.
■
Press the softkey of the preset memory you desire to skip.
■
Press the ESC softkey to exit the map setup function.
Both the scratchpad memory and the memory preset you cleared will
now be skipped in the map rotation.
Adding a Map Memory to the Rotation Sequence
You may bring an empty preset memory back into the MAP key
rotation sequence by copying the scratchpad memory into it.
■
Press [SHFT]>[MAP] to access the map setup function and
adjust the settings as desired.
■
Press the COPY softkey.
■
Press one of the memory softkeys (1-4) to copy the
scratchpad into that memory.
■
Press the ESC softkey to exit the map setup function.
The memory preset you chose is now added to the map rotation.
Restoring the Factory Default Map Presets
The factory default map presets may be restored at any time. Note
that this will permanently erase any information you have entered
into the preset memories.
5-10
■
Press [SHFT]>[MAP] to access the map setup function.
■
Press the COPY softkey.
CHAPTER
Enhanced Moving Map Features
5
■
Press and hold the CLEAR (HOLD DFLT) softkey at least `
four seconds. The message ‘DEFAULT MEMORIES 1 TO 4'
will be shown at the top of the display.
Factory defaults will be loaded into presets 1-4 as follows:
S: Empty (skipped)
1: Flight plan only with courselines
2: Flight plan and paved civil airports over 3500' in length
3: Flight plan and HI and LO VORs
4: Empty (skipped)
Automatic Decluttering
It is possible for the SN3308 map display to become too cluttered to
read, such as by turning on all possible map items. This also has the
undesirable side effect of slowing down the display update rate.
The SN3308 will automatically remove items from the display if the
total number of items is too great to display. When this occurs, it is
indicated by a color change in the associated icon in the map status
bar. Normally these icons are amber, but any item which is not
showing all possible occurrences because of an automatic decluttering
will change the icon color to yellow.
Normally the SN3308 will allow up to approximately 50 icons before
this action occurs, but this number may be smaller if complex airspace
is simultaneously being displayed. When auto-decluttering occurs, it
occurs first to the objects closest to the aircraft. When the display is
zoomed-in, these objects will reappear and the associated status bar
icon will turn back to amber.
Maximum Range of Internal Map Data
During normal operation, the SN3308 only displays items from its
internal database which are within 150 nm of the current aircraft
position (300nm for VORs), even when the selected range is larger.
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Enhanced Moving Map Features
Quick Map Off
During normal operation press and hold the [MAP] key. After 1.5
seconds the map display will jump to MAP OFF from any memory.
You can use this feature to quickly remove all map data from the
screen at any time. Note that this feature will also turn off the WX500 Stormscope display, if enabled.
Map Auto-Range
The SN3308 provides a one-touch automatic ranging function.
Pressing and holding the [ ] key for 1.5 seconds will cause the
SN3308 to zoom to the lowest map range at which the current
waypoint is still visible. Conversely, pressing and holding the [ ] key
will zoom to the highest setting needed to display the full flight plan.
5-12
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Getting the Most From Your SN3308
CHAPTER
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Getting the Most From Your SN3308
If you have never flown with an HSI, you’ll find that the combination
of heading information and selected nav course is a powerful tool. If
you have never flown with an RMI, you’ll find that a simple bearing
pointer can greatly improve your situational awareness. And if you
have never flown with an SN3308, with its combination of HSI, RMI
and moving map in a single display, you’re about to discover how the
whole can be greater than the sum of its parts. Please refer to the
color fold-out pages of this manual while reviewing the following.
Using the HSI
A horizontal situation indicator (HSI) is basically a VOR needle
superimposed over a directional gyro (DG) ring, or heading indicator.
On a conventional VOR display, a course deviation indicator (CDI)
indicates left or right deviation, and an Omni-Bearing Select (OBS)
knob allows selection of the desired course. On an HSI, the OBS knob
turns a course pointer which rotates until it is pointing to the desired
course on the DG ring. The center section of the course pointer
swings left and right to perform the CDI function. A glideslope
(vertical deviation) scale is displayed on the right side of the course
pointer, and the TO/FROM flag is a white triangle displayed next to
the course pointer, either above or below the CDI.
By using the heading indicator as a background for the entire course
pointer/CDI combination, an HSI gives you an immediate visual indication
of the location of the desired radial. You can see at a glance your
intercept angle to the desired radial, whether or not you have flown
through the radial, and whether you are tracking inbound or outbound.
In normal operations, you should connect the HSI course pointer to
your primary navigation source. Do this by pressing the [NAV] button
until the desired source is annunciated.
When the nav source is a VOR receiver, turn the OBS knob until the
course pointer is set to the desired radial. To immediately center the
needle and proceed DIRECTLY TO the VOR station, press
[SHFT]>[SYNC]. If the receiver is tuned to a localizer frequency, set
the course pointer to the published inbound course. Even though the
OBS setting doesn’t affect the CDI when a localizer is tuned, it is very
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Getting the Most From Your SN3308
important to maintain the correct visual orientation on the HSI.
In addition, the autopilot will be using the OBS to obtain a course
reference. Pressing [SHFT]>[SYNC] when a localizer frequency is
tuned rotates the course pointer to align with the present heading.
When the nav source is a long-range nav receiver such as GPS or
loran, the SN3308’s course pointer can auto-slew, or
automatically point to the correct course. The auto-slew function
can be enabled or disabled by pressing [SHFT]>[NAV] and
toggling the AUTO SLEW softkey. If enabled, when the nav
receiver sequences to subsequent waypoints on a flight plan or an
approach, the course pointer will auto-slew to each course in
turn. Simply use standard intercept and tracking techniques to
keep the needle centered.
Bearing Pointers (RMI)
Conceptually, a Radio Magnetic Indicator (RMI) is even simpler
than an HSI. A traditional RMI provides one or two independent
pointers which point to the navigation station, much like an ADF
display. But instead of using a fixed compass card like many ADF
displays, an RMI automatically rotates the compass card so that
the current heading is always at the top of the display. Thus,
each pointer indicates the actual bearing TO the station (reading
the head of the pointer) or FROM the station (reading the tail of
the pointer).
The two bearing pointers on the SN3308 are especially useful
because they can be connected to a VOR receiver, an ADF
receiver, or a GPS/loran receiver. Since all three types of
navigation signals are converted to a common display format in
this case, the SN3308’s bearing pointers make excellent crosschecks against your primary nav source.
To make the best use of the Bearing Pointers we recommend
that you select “AUTO” as the source for bearing pointer 1, and
that it be displayed at all times.
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Getting the Most From Your SN3308
The bearing pointers are useful in the following situations:
Cross-check
Bearing pointer uses a different nav source to track
the same waypoint as the HSI. Bearing pointer
aligns with course pointer if both receivers agree.
Expanding CDI scale Bearing pointer is set to the same nav source as
HSI. If CDI needle is pegged, the bearing pointer
will give a visual indication of how soon until
intercept. Especially useful when intercepting a
localizer or close-in to a VOR station when the CDI
is most sensitive.
Crossing radial
Bearing pointer is connected to a VOR or NDB
abeam the desired track. Use to cross-check DME
fixes and identify step-down fixes or changeover
points.
ADF tracking
Bearing pointer is connected to the ADF and used
for primary navigation. The HSI course pointer
cannot be connected to an ADF.
Example: Flying an ILS
In this example, we’ll fly a full ILS approach with a standard
configuration. We’ll see how the SN3308 can be set up to provide
course guidance both outbound and inbound, as well as crosschecking of navigation data. The fictional approach is depicted below:
Assume that we are approaching the airport from the northwest,
heading 140 degrees. We are told to proceed direct to the locator
outer marker (LOM), and are cleared for the ILS to runway 36. The
procedure is to navigate to the marker using the ADF, track outbound
on the localizer, perform a procedure turn, and then reintercept the
localizer inbound.
To configure the SN3308 for the approach, we will select the
following nav sources: NAV1 for the HSI course pointer, ADF for
bearing pointer #1, and GPS for bearing pointer #2. The NAV 1
receiver should then be tuned to the localizer, the ADF should be
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Welcome to the SN3308
tuned to the locator outer marker, and the GPS should be given the
airport as the “direct-to” destination. Rotate the OBS knob until the
head of the course pointer is aligned with the inbound course of 360˚.
In this configuration, the HSI course pointer will track the localizer,
bearing pointer #1 will point to the outer marker, and bearing
pointer #2 will point to the airport just as a general reference and
final cross-check.
To begin the approach, keep bearing pointer #1 at the top of the
display. Assuming zero wind, this will track you directly to the LOM
(in the presence of a crosswind, use standard ADF tracking
techniques). As you near the localizer course, the CDI needle will
start to swing inward. Because you are flying the localizer outbound,
the tail of the course pointer is near the top of the display and the
left-right sense of the needle is correct. As the needle centers, the
OM light will start flashing and a few seconds later, the #1 bearing
pointer should swing around to the bottom of the display. These are
all confirmations that you have passed the outer marker and are
established on the localizer outbound.
As you keep the CDI centered on the outbound leg, both bearing
pointers should line up with the head of the course pointer at the
bottom of the display. You are now using VHF nav, ADF and GPS
simultaneously to verify the proper outbound course. In addition the
LOC-DME distance from the threshold (if available) is displayed in the
upper left corner, and this can be cross-checked by the GPS distance
from the airport in the lower left corner.
Perform the procedure turn by simply turning to a heading that puts
the course pointer at the desired angle, usually 45˚. After holding this
heading for the desired time or distance and then turning a full 180˚,
the aircraft will be inbound on a 45˚ intercept to the localizer. Now
the course pointer and both bearing pointers will be in the upper half
of the display. If the CDI needle is pegged to the left, bearing pointer
#1 will give a visual indication of how soon to expect an intercept.
Again, as the CDI begins to move inward, bearing pointer #1 will be
approaching the head of the course pointer.
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Welcome to the SN3308
Tracking the localizer inbound, keep the CDI centered using standard
techniques. Outer marker passage will be marked by the flashing OM
display and bearing pointer #1 will swing to the bottom of the
display. LOC-DME and GPS distance can be used as a cross-check.
If the procedure terminates in a missed approach, especially one in
which ATC issues multiple vectors, bearing pointer #2 becomes
especially useful. It simply points at the airport, which can greatly
improve your situational awareness.
--7.2 Nm
I
N L
A S
V 1
1
M
A
P
140˚
- - 120 KT
MAP OFF
140˚
360˚
3 V
6 U
0 E
15
12
E
S
21
6
24
B
R
G
3
W
N
30
33
GPS1
7.5 Nm
070˚
ADF1
140˚
1
SHFT
heading
140˚
SYNC
--8.6 Nm
180˚
A-B
- - 120 KT
MAP OFF
360˚
I
N L
A S
V 1
180˚
3 V
6 U
0 E
21
15
12
heading
180˚
2
M
A
P
E
W
B
R
G
2
24
30
6
33
3
GPS1
8.9 Nm
360˚
ADF1
360˚
SHFT
SYNC
--11.2 Nm
320˚
3 V
6 U
0 E
33
30
N
W
heading
320˚
M
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3
24
6
3
B
R
G
21
E
15
N
- - 120 KT
MAP OFF
360˚
I
N L
A S
V 1
3
320˚
A-B
SHFT
12
GPS
ADF1
340˚
11.5 Nm
350˚
SYNC
A-B
6-5
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Flags, Abnormal Conditions and Messages
CHAPTER
7
Abnormal Conditions
Flags and Abnormal Conditions
The SN3308 detects abnormal conditions such as flagged navigation
receivers and failed directional gyro or fluxgate. It also monitors its
own internal temperature and provides warnings for overtemperature or loss of cooling conditions.
Condition
Display
NAV flag
HSI display: large red “X” through the CDI
scale, and the deviation bar is not
displayed. Numeric bearing display
shows “- - -”.
RMI display: bearing pointers are not shown.
Numeric bearing displays show
“- - -”.
Note: CDI pointer will be visible under “x” for
two minutes after power-up to allow testing
for certain GPS receivers.
GS (glideslope) flag
Large red “X” through glideslope scale,
glideslope pointer is not displayed.
Directional gyro failure
Compass rose color changes from white to amber.
Heading data is obtained from fluxgate alone.
Because fluxgate signals are averaged over time,
heading response will lag the aircraft significantly.
Fluxgate failure
Compass rose color changes from white to
amber, and the heading numbers are removed
from the compass rose. The display can be
used to determine relative headings for turns,
but the magnetic compass should be used to
determine absolute heading.
Loss of gyro & fluxgate
Loss of compass rose.
7-1
CHAPTER
7-2
7
Abnormal Conditions
Condition
Display
Switching relay failure
Redline through nav source such as NAV1 or
GPS1. Indicates failure of the external
switching relay associated with the source and
that the deviation bar on the CDI is invalid.
Fast slave mode
123 Compass heading is redlined. Heading
has not stabilized.
LNAV serial data loss
LNAV Indicates loss of data communication
from the GPS or loran long-range nav receiver.
Invalid GPS data
LNAV Indicates invalid data is being received
from the Airinc 429 GPS receiver. This is
accompanied by the normal 'X' through the CDI
at the bottom of the screen.
Map flag
MAP Indicates that map cannot be displayed
because of loss of LNAV data or a flagged
LNAV.
Stormscope Flag
WX Indicates loss of data communication
from the BFG WX-500 Stormscope.
CHAPTER
7
SN3308 On-screen Messages
Messages
The Sandel SN3308 displays different messages to alert the pilot.
The messages are initiated by the Pilot, the Built In Self Test (BIST),
the Power On Self Test (POST) or by the System. Most of the Pilot
initiated messages are shown on-screen for two seconds and are
removed automatically. Error messages which are considered
critical are places on-screen permanently until acknowledged. The
Acknowledgment is done using the ACK soft-key which will appear
and flash when such a message appears. It also monitors its own
internal temperature and provides warnings for over-temperature
or loss of cooling conditions.
Display Item
Source Notes
*OVERTEMP SHUTDOWN*
BIST
Note 2
+15v OVER VOLTAGE
BIST
Note 1
+15V UNDER VOLTAGE
BIST
Note 1
10 MINS TILL OVERTEMP
BIST
Note 1
-15V OVER VOLTAGE
BIST
Note 1
-15V UNDER VOLTAGE
BIST
Note 1
3 DEGREES TO SHUTDOWN
BIST
Note 2
3v OVER VOLTAGE
BIST
Note 1
3v UNDER VOLTAGE
BIST
Note 1
400HZ INVERTER LOSS
BIST
Loss of main inverter - Note 3
INVERTER FREQ TOO LOW
BIST
Problem with main inverter - Note 3
INVERTER FREQ TOO HIGH
BIST
Problem with main inverter - Note 3
5v OVER VOLTAGE
BIST
Note 1
5v UNDER VOLTAGE
BIST
Note 1
COOLING FAN FAILURE
BIST
Note 2
7-3
CHAPTER
7
SN3308 On-screen Messages
Display Item
Source Notes
CRC Self-Test Failed
POST
DEFAULT MEMORIES 1 TO 4 Pilot
Appears when map memory
locations have been reset to their
default settings by pressing and
holding the "CLEAR" softkey while
in the map setup mode.
DEMO MODE:
NOT FOR FLIGHT
This message appears when the
SN3308 has been placed in demo
mode for use with the Sandel
demonstrator box. In this mode,
the SN3308 does not respond
normally to signal inputs. To exit
demo mode, power up the
SN3308 while holding the [NAV],
[MAP] and [BRG] buttons
simultaneously.
System
EXT. SWITCH SET TO LORAN Pilot
7-4
Program CRC is not the expected
value. The “CRC Self Test Failed”
message must not appear on
power-up if flight operations are
predicated on the use of the
SN3308 Navigational Display.
This message appears when
pressing the "NAV" switch on the
SN3308 when it is slaved to an
external loran/NAV switch/
annunciator panel. Instead of the
SN3308 NAV switch use the
external loran/NAV switch.
CHAPTER
7
SN3308 On-screen Messages
Display Item
Source Notes
EXTERNAL SWITCH SET TO GPS Pilot
This message appears when
pressing the "NAV" switch on the
SN3308 when it is slaved to an
external GPS/NAV
switch/annunciator panel. Instead
of the SN3308 NAV switch use the
external GPS/NAV switch.
FLUXGATE XYZ LOST
Fluxgate XYZ signal voltage too
low or not received.
BIST
FLUXGATE EXCITATION LOST BIST
Fluxgate excitation has failed.
Check the gyro circuit breaker.
Note 4
GPS SELECTED EXTERNALLY Pilot
This message appears when the
SN3308 is slaved to an external
GPS/NAV switch/annunciator panel
and it is first placed in GPS
position changing the SN3308
display from NAV1 to GPS1.
GYRO XYZ LOST
BIST
Gyro XYZ (synchro) signal voltage
too low or not received.
GYRO INVALID
BIST
Gyro valid flag asserted. Check the
gyro circuit breaker. Note 4
LEG/AUTO (AUTO SLEW) IS ON Pilot
Displayed when course knob is
turned but course knob setting is
over-written by Direct Track from
Long Range Nav Receiver. Autoslew operation can be disabled by
entering the [SHFT]>[NAV] page
and turning auto-slew ON or OFF
with the softkey. If auto-slew is
turned off you will have to turn the
course pointer manually at every
waypoint when flying a flight plan.
7-5
CHAPTER
7
SN3308 On-screen Messages
Display Item
7-6
Source Notes
LORAN SELECTED EXTERNALLY Pilot
This message appears when the
SN3308 is slaved to an external
loran/NAV switch/annunciator
panel and it is first placed in loran
position changing the SN3308
display from NAV1 to loran1.
Map Cntl SRC Check FAILED, POST
Map Data CRC Check FAILED,
Map Cntl Contains Errors
These messages indicate that the
upload of the map database to
the unit was not completed
successfully or the file was
corrupted. Repeat the upload
procedure. Contact Sandel
technical support if the messages
reoccur. Note 5
Map Format Conflict
POST
Indicates a mismatch between the
operating software version and
the map database. Check the
Sandel website to ensure that you
have the latest versions of
operating software and database
and repeat the upload procedure.
Note 5
NAV1 TUNED TO ILS
Pilot
Appears when VHF NAV1 is tuned
to an ILS frequency overriding and
changing the SN3308 current NAV
selection.
NavData Expires ddmmmyy, BA POST
Expiration date of internal
Jeppesen database. The two
letters following are an internal
software code.
NAV2 TUNED TO ILS
Pilot
Same as above, except pertains to
NAV2.
RS232 PORT-0 OVERFLOW
System
An internal error message which
should never appear.
CHAPTER
7
SN3308 On-screen Messages
Display Item
Source Notes
RS232 PORT-1 OVERFLOW
System
An internal error message which
should never appear.
SCRATCHPAD CLEARED
Pilot
Appears when the map scratchpad
memory has been cleared by
pressing the "CLEAR" softkey
while in the map setup mode.
SETUP USING <SHFT-BRG>
Pilot
This message is displayed when
the Bearing Pointer is turned on
but both bearing pointer source
selections have been set to "OFF".
Use [SHFT]>[BRG] to assign at
least Bearing Pointer 1 to a
source, usually AUTO.
Vers: xx.xx CRC: xxxxxxxx
POST
At power up shows Software
Version and Cyclic Redundancy
Check. Write down the Software
Version Number prior to
contacting Sandel with technical
questions.
WX NOT INSTALLED
Pilot
Access to the [SHFT]>[WX] menu
is attempted when the WX-500
Stormscope is not installed.
YOU ARE TUNED TO AN ILS
Pilot
This message appears when
pressing the “NAV” switch on the
SN3308 to select a GPS or loran
and this action is overridden
because an ILS is tuned on NAV1.
7-7
CHAPTER
7-8
7
SN3308 On-screen Messages
NOTE 1:
BIST is Built In Self Test. This runs continuously
while the SN3308 is operating.
NOTE 2:
The internal temperature is continuously
monitored. An overtemp condition will only occur
if the cooling fan failure occurs first (the fan stops
turning) or the cooling fan filter is clogged or
obstructed. As the temperature rises a warning
will be issued approximately 10 minutes prior to
shutdown as a warning. If shutdown occurs the
SN3308 will shut off the projection lamp and
continue operating, and resume normal operation
as the internal temperature falls.
NOTE 3:
The Inverter failure messages will only appear if
a master inverter is installed.
NOTE 4:
Gyro Failures will only be annunciated if the
installed Gyro has a valid flag output. If the
"Fluxgate Failed" message appears check the
Gyro circuit breaker which is usually the source
of Fluxgate power.
NOTE 5:
All other functions of the SN3308 continue to
operate normally when the map has failed.
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Technical Specifications and Operating Limits
CHAPTER
8
Technical Specifications and Operating Limits
TSO Compliance
Technical Standard Order (TSO):
TSO-C113, Airborne Multipurpose
Electronic Displays
Software Certification:
RTCA/DO-178B, Level C - Hazardous
Environmental Category:
DO-160C: F1CANBMXXXXXXZBABBWA/ZXXX
DO-160D: XXXXXXXXXXXXXXXXX(E/F-2)XX
Physical Dimensions
Form Factor:
3ATI (ARINC 408)
Width:
3.165 in. (8.04 cm)
Height:
3.165 in. (8.04 cm)
Length:
10.65 in. (26.24 cm) overall, excluding
connectors & knobs
Weight:
2.9 lbs (1.3 Kg)
Operational Characteristics
Temperature/Altitude:
-20˚ C to +70˚ C up to 55,000 ft
Power Inputs:
11 to 33 VDC @ 3.2 Amperes maximum
13.75 VDC @ 2.5 Amperes nominal
27.5 VDC
@ 1.25 Amperes nominal
8-1
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Installation Information
CHAPTER
9
Installation Information
To Be Completed by Installer
Date of installation:
Installer Company:
Installer Address:
Installer Phone:
Work order #:
Installer:
Nav equipment inputs:
Notes:
9-1
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Technology of the SN3308
APPENDIX
1
Technology of the SN3308
The Sandel Avionics SN3308 is the first member of an entire family
of products to be based on a new, state-of-the-art display technology.
This new type of display, along with a reduced instruction-set (RISC)
microprocessor and highly integrated peripheral chips, makes it
possible to acquire and display data from many different cockpit
instruments.
Traditional electronic cockpit displays have been based on either
cathode-ray tube (CRT) or direct-view liquid-crystal display (LCD)
technology. One disadvantage of both CRTs and LCDs is that neither
can display an image out to the very edge of the screen. This becomes
especially significant when the outside dimension is constrained to
only three inches across! In a 3 inch cockpit instrument, the amount of
unusable display area on a traditional CRT or LCD can approach 50%.
The SN3308 solves this problem by using a much smaller LCD as the
heart of an image projection system. The light beam from a
ruggedized halogen bulb is first passed through a series of color
splitters, with each color beam aimed at the corresponding set of
pixels in the LCD. The resulting high-intensity color image is then
projected through a magnifying lens onto a high-contrast optical
screen. The final result is a crisp, clear color image which spans the
full height and width of the instrument.
Internally, the physical design of the SN3308 is as unique as the
display. Circuit boards are mounted lengthwise, close to the metal
case, to keep clear of the light path between the projection lens and
the screen. The nine pushbuttons are actually at the ends of long
connecting rods which curve back to their switches so as not to cast a
shadow on the screen. Even the two knobs actually turn long
segmented shafts connected by universal joints, which provide a
precise mechanical connection while remaining clear of the light path.
The display flexibility of the SN3308 is made possible by the highspeed digital conversion of all analog signals coming into the unit.
Heading gyro input, ADF bearing, and even composite VOR signals are
received, conditioned, and immediately converted into a common
digital format. This allows completely different types of navigation
signals, such as VOR, ADF, and GPS, to be displayed simultaneously.
A1-1
APPENDIX
1
Technology of the SN3308
Taken together, the image projection system, unique mechanical
design, and digital conversion technologies of the SN3308 provide
new levels of sophistication to cockpit displays.
A1-2
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Illustrations
Current NAV Source
Bearing Pointer 1
To/From
(Shown for Reference)
Current A-B
Memory
Selected Course
Bearing Pointer 2
DME Distance
Current Heading
Heading Bug
3
6
0
Groundspeed
V
I
E
W
Selected Heading
Course Pointer
Glideslope/
Vertical Deviation
Bearing Pointer 1 Source
& Bearing
Bearing Pointer 2 Source
Distance & Bearing
CDI/Lateral Deviation
ILLUSTRATION 1 – 360 View
A2-1
Current NAV Source
Current A-B
Memory
Bearing Pointer 1
Bearing Pointer 2
Selected Course
Current Heading
DME Distance
Heading Bug
Groundspeed
A
R
C
Selected Heading
V
I
E
W
Course Pointer
To/From
(Shown for Reference)
Glideslope/
Vertical Deviation
Bearing Pointer 1
Source & Bearing
Bearing Pointer 2
Source, Distance &
Bearing
CDI/Lateral Deviation
ILLUSTRATION 2 – ARC View
A2-2
Current NAV Source
(AUTO indicates GPS
in Auto-Sequence Mode)
Heading Bug
Selected Course
Bearing Pointer 2
Current A-B Memory
Current Heading
Groundspeed
Current Waypoint,
Bearing & Distance
Map Range
Selected Heading
3
6
0
/
M
A
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Lubber Line
Flight Plan
Waypoints
Class C Airspace
Class B Airspace
Courseline
Bearing Pointer 1
Source & Bearing
Bearing Pointer 2 Source,
Distance & Bearing
GPS Annunicators
CDI/Lateral Deviation
Map Status Bar
Bearing Pointer 1
Current Map Memory
ILLUSTRATION 3 – 360 View with Map
A2-3
Current NAV Source
(AUTO Indicates 6PS
in Auto-Sequence Mode)
Current A-B Memory
Current Heading
Current Waypoint,
Bearing & Distance
Lubber Line
Selected Course
Bearing Pointer 1
Heading Bug
Groundspeed
Map Range
Selected Heading
A
R
C
M
O
D
Airport Runways
Class C Airspace
Courseline
Bearing Pointer 1
Source & Bearing
CDI/Lateral Deviation
Intersections
Map Status Bar
Current Map Memory
ILLUSTRATION 4 – ARC View with Map
A2-4
Redlined NAV Source –
Failure of
Switching Relay
Associated with Source
Redlined LNAV* –
Loss of Data
Communication
with GPS/loran Receiver
Redlined Heading –
Fast Slave Mode
Compass Not Stabilized
MAP Flag –
Loss of Map Due to
Failure of LNAV Source
Redlined WX –
Loss of Data
Communication
From WX-500
F
L
A
G
S
Glideslope/
Vertical
Deviation Flag
Marker Test
NAV/Lateral Deviation
* Invalid data from the GPS
receiver is indicated by
LNAV
ILLUSTRATION 5 – Flags
A2-5
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Limited Parts & Labor Warranty
WARRANTY
1
Limited Parts & Labor Warranty
Sandel Avionics LLC (hereinafter referred to as “Sandel”) provides the
following limited warranty. If you should have any questions, please
contact the avionics shop that sold you the SN3308 or contact Sandel
directly.
CONDITIONS OF LIMITED WARRANTY
If during the one (1) year period from the date of original purchase
or installation, your SN3308 is found on authorized inspection to
have a defect in material or workmanship, Sandel or an authorized
representative will repair such defect or replace the defective unit
without charge for parts or labor. Routine maintenance work and the
results of normal wear are not covered by this warranty except as
noted.
For the next one (1) year Sandel will replace any individual electronic
part, sub-assembly, or finished product judged by Sandel to be
defective, without charge for parts. Parts replaced under this portion
of the warranty are warranted for the remainder of the original
product warranty or for 90 days (whichever period is longer).
Sandel reserves the right to utilize reconditioned subassemblies as
warranty replacements in the repair of the product. In the event
Sandel determines that the unit cannot be repaired, Sandel will
replace the defective unit with either the same model product or one
that is reasonably equivalent. At Sandel’s discretion, replacement units
or repaired units may include software or hardware updates and
revisions that alter some characteristics of the product.
Should warranty service be required, the warranty period will be
extended by the number of days that elapse between the date a
defect is reported and the date that the repaired unit is returned.
Sandel assumes no responsibility for payment of any repair services
performed by third parties including removal of the unit from the
aircraft, inspection, packaging, handling, or installation unless such
services are authorized in advance and in writing by Sandel.
Sandel reserves the right to make changes, upgrades, and
improvements to its products without incurring any obligation to
install such changes, upgrades, and improvements in previously
manufactured products.
W-1
WARRANTY
1
Limited Parts & Labor Warranty
If during the warranty period, title to the aircraft in which the
product is installed is transferred the remainder of the warranty may
be transferred to the new owner by notifying Sandel in writing of the
transaction. Such notification must include complete address
information for the original owner and the new owner as well as the
N number and serial number of the aircraft and the serial number of
the Sandel product.
Please contact Sandel directly if you have any questions regarding the
Sandel limited warranty. This limited warranty is applicable only in
the fifty states of the USA and the District of Columbia. It is not
applicable in the possessions or territories of the USA or in any other
country. This limited warranty is the only warranty which Sandel
makes with respect to your SN3308. Sandel disclaims all other
warranties relating to the product including warranties of
merchantability and fitness for a particular use.
In any event, Sandel shall not be liable for any incidental or
consequential damages. Some states do not allow the exclusion or
limitation of incidental or consequential damages and some states do
not allow limitations on how long an implied warranty may last;
therefore, the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights. You may also have other
rights that vary from state to state. In the event any of the
provisions of this warranty are found by statute or by applicable
administrative or judicial entity to be unenforceable, the remaining
provisions shall remain in force.
OWNERS RESPONSIBILITIES
Please read the Pilot’s Guide of your SN3308 and the equipment to
which it is connected. The information provided in your Pilot’s Guide
covers operation, safety precautions and routine maintenance. This
warranty does NOT cover expenses incurred due to a lack of
understanding of the functioning of the product when it is operating
as designed.
In order for Sandel to provide proper warranty service, you may be
required to:
W-2
WARRANTY
Limited Parts & Labor Warranty
1
■
Supply proof of purchase documents.
■
Permit Sandel or an authorized representative to provide
the applicable warranty service during normal business hours.
■
Retain and provide to Sandel (upon request) any
documentation of the installation of the product in your
aircraft.
■
Provide Sandel with all pertinent information regarding the
symptoms, failure, or defect initiating the request for
warranty service.
EXCLUSIONS
This warranty does not cover the following:
■
Projection lamp.
■
Failures that are the result of improper installation,
maintenance, or repair.
■
Failures that result from neglect, abnormal strain,
modification, accidental damage, theft, vandalism, or
exposure to extremes in temperature or relative humidity.
■
Products whose trademark, name, or identification numbers
have been altered or removed.
■
Radio frequency interference generated by equipment
operated in violation of applicable FCC rules.
■
Equipment purchased “As New” from a dealer or distributor
not authorized by Sandel.
All product or material returned to Sandel must be properly packed
and labeled with a Returned Material Authorization (RMA) number.
Should proper packing materials not be available, Sandel will provide
an approved shipping container on request.
W-3